Rockies' Tyler Chatwood goes on DL with mid-back strain

MIAMI (AP) Colorado Rockies right-hander Tyler Chatwood has been placed on the 15-day disabled list with a mid-back strain, and the team hopes he can rejoin the rotation as soon as he's eligible.

Right-hander Scott Oberg was recalled from Triple-A Albuquerque before the Rockies' game Sunday at Miami to take Chatwood's roster spot.

Right-hander Eddie Butler, who is 2-4 with a 6.26 ERA and has made seven starts this year, is likely to take Chatwood's place in the rotation.

Chatwood (8-4, 2.89 ERA) left Saturday's start at Miami after 1 2/3 innings because of the injury. He has made 14 starts this season after returning from his second Tommy John surgery.

Oberg had a 4.76 ERA in eight games with Colorado before being optioned to Triple-A on May 20.